From a presentation of the history of the comparative method in diverse scientific disciplines
(natural sciences, sociology, pedagogy, literature, etc.), this article analyzes the importance of the use
of the above mentioned method in the library sciences.
It has been chosen a diachronic study of the question, so that departing from the first works on this
matter (Krzys and Litton), there have been analyzed the definitions and essential ideas of such
experts as Foskett, Shores and, especially the fundamental works of Simsova and Periam Danton.
The article appears as a wide bibliographical review of the comparative method, considered like of
very fruitful application in the sciences of the libraries
